https://umaine.edu/news/blog/2020/04/06/sierra-yost-chemical-engineering-major-student-athlete-valedictorian/ Sierra Yost Sierra Yost: Chemical engineering major, student-athlete, valedictorian April 6, 2020 Chemical engineering major and Honors College student Sierra Yost of Windham, Maine is the 2020 University of Maine valedictorian. Yost is a member of the UMaine cross-country, and track and field teams. Her honors thesis focuses on the application of cellulose nanofibers read more Chemical Engineer Sierra Yost is UMaine Valedictorian of 2020